https://www.nowcoder.com/practice/e8a1b01a2df14cb2b228b30ee6a92163?tpId=13&&tqId=11181&rp=1&ru=/activity/oj&qru=/ta/coding-interviews/question-ranking
JZ39 数组中出现次数超过一半的数字
class Solution {
public:

    int MoreThanHalfNum_Solution(vector<int>& numbers) {
        // write code here
        sort(numbers.begin(),numbers.end());
        return numbers[numbers.size()/2];
    }
};